Oil and Gas Leases

May 16, 2003

The following were leased to Halcyon Exploration Company, Denver, on 3 year leases.

Ronald K. Howe, Haswell, Section 18: Lots 1, 2, NE4,E2NW4, T19S, R52W. Also Section 13, S2, T19S, R53W.

Sam Mitchek, Cheyenne Wells, Section 19: Lots 2, S2NE4, SE4NW4, T19S, R52W.

Spindeltop Exploration Company, Dallas, Texas; Clesta L. Mitchell, San Diego, California; Section 18: Lots 3, 4, SE4, E2SW and Section 19, Lots 3, 4, SE4, E2SW, T19S, R52W. Section 24: S2, T19S, R53W.

Benjamin I. Collins, Denver, Section 19: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

Robert E. Zimmerman, Jr. and Charles T. Zimmerman, Houston, Texas, Section 19: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

F/H Minerals, Arvada, Section 18: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

George G. Vaught, Jr., Denver; Paul L. McCulliss, Littleton, Section 18: Lots 3, 4, SE4, E2SW4, T19S, R52W.

Carmen Guerrero, Executrix of the state of Peter M. Guerrero, deceased, Hayward, California, Section 19: Lots 3, 4, SE4, E2SW, T19S, R52W. Section 24: S2, T19S, R53W.

Mike L. Wyckoff, Cheraw, Section 19: Lots 3, 4, SE4, E2SW4. Section 30: SE4SE4, T19S, R52W.

Henry A. and Ruthie E. Schnabel, Bristol, Section 14: S2. Section 23: NW4, T19S, R53W.

Jane Lawrence Eberhardt, Mercer Island, Washington, Section 18: Lots 3, 4, SE4, E2SW4, T19S, R52W.

Dennis D. and Michelle A. Wyckoff, Arlington, Section 25: W2, SE4. Section 26: N2, T19S, R53W.

Rex A. Hoffman, Cheyenne Wells, Section 19: Lots 1, N2NE4, NE4NW4, T19S, R52W.

Joseph W. Cullen, Roswell, New Mexico, Section 24: N2, T19S, R53W.

Horace Gaims and John Gaims, Co-Trustees of Trust A, under will of Nancy Smith Gaims, deceased, Los Angeles, California, Section 19: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

Arthur Ben Guerrero, Norwalk, Connecticut, Section 19: Lots 3, 4, SE, E2SW, T19S, R52W. Section 24: S2, T19S, R53W.

Sally Light, Albany, California, Section 19: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

John Gaims, Los Angeles, California, Section 19: Lots 3, 4, SE4, E2SW4, T19S, R52W. Section 24: S2, T19S, R53W.

5 year lease from Colorado State Bank and Trust, and Orin C. Milburn as Co-Trustees of the Orin C. Milburn and Ruth M. Milburn Revocable Trust, Denver, to Halcyon Exploration Company, Section 18: Lots 3, 4, SE4, E2SW4, T19S, R52W.

3 Year leases to Gary Alsobrook, Elizabeth, Colorado:

Lois Lee Davis, Trustee of the Lois Lee Davis Revocable Trust, Lamar, Section 2: Lots 3, 4, 5, 6, T17S, R43W. Also Section 6: Lots 3, 4, 5, 6, 7, SE4NW4, E2SW4, T17S, R41W.

Las Animas Minerals, Lts., Dallas, Texas, Section 30: NE4, T17S, R41W.

Ralph L. and Edna E. Day, Dodge City, Kansas, Section 19: E2, SW4, T17S, R41W.

Beth Bourgoin, Sparta, North Carolina, Section 30: SE4, T17S, R41W.

Ann Rutherford, Crawfordville, Georgia, Section 30: SE4, T17S, R41W.

Susie O. Fleetwood, Monroe, North Carolina, Section 30: SE4, T17S, R41W.

Ann Osborne, Greensboro, North Carolina, Section 30: SE4, T17S, R41W.

The following was leased to Joseph K. and Madge B. Morgan, Denver, for three years.

University of Nebraska Foundation, Lincoln, Nebraska, Section 5: SE4. Section 7: SE4, Section 8: NW4, T18S, R46W.

Thomas A. Adamson, Eads, Section 9: S2, T18S, R46W.

State Board of Land Commissioners, Section 16: All, T17S, R46W.